Researchers at MIT suggest that the microscopic "primordial black holes" could be blasting through our solar system at least once every ten years. These tiny black holes could be extremely dense, they suggest,

"Primordial black holes do not live in the solar system. Rather, they're streaming through the universe, doing their own thing," said researcher Sarah Geller.

Scientists say microscopic black holes could explain the elusive "dark matter" that makes up a quarter of all matter in the universe. But can it be proven?

A new study suggests that a microscopic black hole might pass through our solar system once every decade or so.

Primordial black holes, which are smaller than their better-known cousins, visit the inner Solar System once a decade, simulations suggest.

If microscopic black holes born a fraction of a second after the Big Bang exist, then at least one may fly through the solar system per decade, generating tiny gravitational distortions that scientists can detect.

Astronomers have observed three types of black holes in the universe. Stellar-mass black holes formed from the collapse of a massive star, intermediate mass black holes found in some star clusters, and supermassive black holes that lurk in the centers of galaxies.